From: Wolfgang Denk <wd@denx.de>
To: Ole.Reinartz@nokia.com
Cc: linuxppc-embedded@lists.linuxppc.org,
Tobias.Otto-Adamczak@e-technik.tu-chemnitz.de
Subject: Re: ISDN on MPC ?
Date: Fri, 30 Jun 2000 13:07:57 +0200 [thread overview]
Message-ID: <200006301107.NAA04859@denx.local.net> (raw)
In-Reply-To: Your message of "Fri, 30 Jun 2000 12:36:32 +0300." <A914533BF4B9D2118D980008C7894C0A02D1EBD3@dueis01nok>
In message <A914533BF4B9D2118D980008C7894C0A02D1EBD3@dueis01nok> you wrote:
>
> AFAIK the MPC860 µP's are designed especially to be used with existing
> telecom- designs, including existing ISDN chipsets. There should be support
> for SIEMENS' GCI(2) bus and the motorola own bus (forgot the name). There is
> also HDLC functionality in the CPM so that you are not forced to use an
> external framer.
Right, you can handle all this using the SCC's. I know of several
commercial solutions that do exactly that. Unfortunately, I don't
know of an Open Source project.
In our case we estimated that it would be easier (in terms of
development effort) to interface an external framer, and re-use
existing isdn4linux code as much as possible. Also, using a PCMCIA
prototype card, it's much easier to sort out some other problems
lioke endianess by running the same code on very similar hardware
both on the MPC8xx target and on a normal x86 laptop.
> I didnt actually integrate such things yet, but it is a spare time project I
> want to start one day.
Just let me know if you have any free manpower to offer :-)
> In isdn4linux there should be code to access some of the siemens chips (the
> ones most of the passive PC- isdn- cards are based on). Perhaps there could
> be some driver code you could base your design on.
That's what we're doing.
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
"There are things that are so serious that you can only joke about
them" - Heisenberg
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-06-30 11:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <A914533BF4B9D2118D980008C7894C0A02D1EBD3@dueis01nok>
2000-06-30 9:51 ` ISDN on MPC ? Tobias Otto-Adamczak
2000-06-30 11:07 ` Wolfgang Denk [this message]
2000-06-30 14:20 Ole.Reinartz
-- strict thread matches above, loose matches on Subject: below --
2000-06-29 13:45 IBM405GP startup-code Grant Erickson
2000-06-29 15:07 ` ISDN on MPC ? Tobias Otto-Adamczak
2000-06-29 15:35 ` Wolfgang Denk
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